Mexico City is built on top of an underground resevoir!
47
The city of Houston, Texas is built on a swamp and is slowly sinking!
89
Australia's Great Barrier Reef is 1,250 miles long!
45
There are more than 50,000 earthquakes throughout the world every year!
47
There are approximately three chickens for every human on Earth.
13
In one day, a full grown redwood tree expels more than 2 tons of water through its leaves.
56